@book{66162,
	author = {Holton, Derek Allan, and ebrary, Inc.},
	title = {The teaching and learning of mathematics at university level},
	publisher = {Kluwer Academic,},
	year = {c2001.},
	series = {New ICMI studies series ;},
	address = {Dordrecht ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10053279}
}